Now, in his final years in office, Obama has trained his sights on prisoners like Scrivner, and wants to use his previously dormant pardon power as part of a larger strategy to restore fairness to the criminal-justice system. A senior administration official tells Yahoo News the president could grant clemency to "hundreds, perhaps thousands" of people locked up for nonviolent drug crimes by the time he leaves office — a stunning number that hasn't been seen since Gerald Ford extended amnesty to Vietnam draft dodgers in the 1970s.